Stearidonic Acid

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  • Identifiers

    CAS number
    20290-75-9

    Molecular formula
    C18H28O2

    SMILES
    CC/C=C\C/C=C\C/C=C\C/C=C\CCCCC(=O)O

    Safety labels

  • Odor profile

    Fragrance
    Fatty 79.94%
    Oily 57.39%
    Waxy 34.32%
    Green 31.43%
    Fishy 30.17%
    Fruity 27.94%
    Citrus 24.53%
    Herbal 23.57%
    Dairy 21.43%
    Woody 21.1%

     

    Flavor
    Faint 21.34%
    Fatty 21.25%
    Oriental 19.05%
    Pumpkin 18.47%
    Diterpene 18.04%
    Delicate 18.01%
    Nitrile 17.84%
    Low 17.84%
    Slightly waxy 17.78%
    Honeydew 17.7%

     

    Odor impact est.
    Low

  • Properties

    XLogP3-AA
    5.2

    pKa est.
    8.01 (weak base)

    Molecular weight
    276.4 g/mol

    Vapor pressure est.

    • hPa @ 20°C
    • hPa @ 25°C

    Evaporation rate
    Ultra slow

    Boiling point est.
    310°C

    Flash point

    • 228.66 ˚C est.

  • Synonyms

    • Stearidonic acid
    • 20290-75-9
    • 6Z,9Z,12Z,15Z-octadecatetraenoic acid
    • P4CEK3495O
    • RefChem:185402
    • Moroctic acid
    • (6Z,9Z,12Z,15Z)-octadeca-6,9,12,15-tetraenoic acid
    • 6,9,12,15-Octadecatetraenoic acid, (6Z,9Z,12Z,15Z)-
    • (6Z,9Z,12Z,15Z)-Octadecatetraenoic acid
    • all-cis-6,9,12,15-Octadecatetraenoic acid
    • FA 18:4
    • 6(Z),9(Z),12(Z),15(Z)-Octadecatetraenoic acid
    • 111174-40-4
    • C18:4n-3,6,9,12
    • all-cis-octadeca-6,9,12,15-tetraenoic acid
    • UNII-P4CEK3495O
    • Morotic acid
    • 6cis Stearidonic acid
    • stearidonic acid C18:4
    • Stearidonic acid, >=99%
    • SCHEMBL29226
    • STEARIDONIC ACID [MI]
    • CHEMBL484430
    • orb1991384
    • CHEBI:32389
    • 6,9,12,15-octadecatetraenoate
    • DTXSID20920493
    • STEARIDONIC ACID [WHO-DD]
    • HMS3649J17
    • LMFA01030357
    • MFCD00216036
    • MSK1783-100M
    • MOROCTIC ACID (C18:4 N3)
    • AKOS040735398
    • NCGC00344331-01
    • AS-80602
    • FO159115
    • HY-113120
    • NS00010575
    • 6Z, 9Z, 12Z, 15Z- octadecatetraenoic acid
    • FA(18:4(6Z,9Z,12Z,15Z))
    • SR-01000946667
    • .DELTA.6,9,12,15-OCTADECATETRAENOIC ACID
    • Q2739877
    • SR-01000946667-1
    • all-cis-6,9,12,15-Octadecatetraenoic acid Solution in Methanol, 100ug/mL
    • 20290-75-9

  • Applications

    Stearidonic Acid (CAS 20290-75-9) is used as a versatile oleochemical feedstock and intermediate for the production of longer-chain omega-3 fatty acids such as EPA and DHA via chemical or enzymatic routes; it also serves as a raw material for omega-3 esters and triglycerides intended for nutraceuticals and dietary ingredients. In cosmetics and personal care, it is a building block for omega-3 derivatives and triglycerides used as emollients and conditioning agents. In oleochemical and polymer applications, SDA-derived derivatives are used to formulate biobased lubricants, plasticizers, and specialty esters for coatings, inks, and polymer systems. In cleaning and household products, SDA-derived surfactants and emulsifiers may be developed as biodegradable ingredients for cleaners formulations. In summary, SDA is commonly evaluated as an intermediate and feedstock for sustainable omega-3 derivatives across nutraceutical, cosmetic, and materials applications, subject to formulation limits and local regulations.

    gpt-5-nano

  • Solubility @25˚C

    Solvent Solubility (g/L)
    ethanol 69.38
    methanol 59.39
    isopropanol 58.07
    water 0.01
    ethyl acetate 53.16
    n-propanol 58.05
    acetone 68.34
    n-butanol 65.22
    acetonitrile 13.46
    DMF 129.91
    toluene 26.93
    isobutanol 43.24
    1,4-dioxane 95.19
    methyl acetate 34.34
    THF 357.31
    2-butanone 76.48
    n-pentanol 69.23
    sec-butanol 57.38
    n-hexane 16.98
    ethylene glycol 3.02
    NMP 159.93
    cyclohexane 18.02
    DMSO 277.19
    n-butyl acetate 87.92
    n-octanol 34.79
    chloroform 117.47
    n-propyl acetate 84.94
    acetic acid 26.51
    dichloromethane 117.16
    cyclohexanone 155.92
    propylene glycol 14.45
    isopropyl acetate 58.39
    DMAc 241.99
    2-ethoxyethanol 109.27
    isopentanol 71.53
    n-heptane 9.71
    ethyl formate 25.29
    1,2-dichloroethane 110.67
    n-hexanol 63.63
    2-methoxyethanol 109.01
    isobutyl acetate 67.13
    tetrachloromethane 18.76
    n-pentyl acetate 71.94
    transcutol 484.2
    n-heptanol 37.13
    ethylbenzene 30.1
    MIBK 90.72
    2-propoxyethanol 124.38
    tert-butanol 87.93
    MTBE 95.79
    2-butoxyethanol 89.43
    propionic acid 26.99
    o-xylene 28.22
    formic acid 6.83
    diethyl ether 73.63
    m-xylene 28.08
    p-xylene 34.25
    chlorobenzene 35.59
    dimethyl carbonate 15.71
    n-octane 4.84
    formamide 12.25
    cyclopentanone 167.86
    2-pentanone 91.62
    anisole 65.99
    cyclopentyl methyl ether 131.98
    gamma-butyrolactone 125.68
    1-methoxy-2-propanol 121.68
    pyridine 71.02
    3-pentanone 57.71
    furfural 95.7
    n-dodecane 3.53
    diethylene glycol 49.89
    diisopropyl ether 32.89
    tert-amyl alcohol 80.05
    acetylacetone 95.5
    n-hexadecane 4.05
    acetophenone 74.2
    methyl propionate 45.1
    isopentyl acetate 93.52
    trichloroethylene 148.84
    n-nonanol 36.43
    cyclohexanol 64.33
    benzyl alcohol 46.03
    2-ethylhexanol 50.35
    isooctanol 39.82
    dipropyl ether 78.74
    1,2-dichlorobenzene 42.07
    ethyl lactate 39.06
    propylene carbonate 65.48
    n-methylformamide 28.62
    2-pentanol 50.94
    n-pentane 7.92
    1-propoxy-2-propanol 115.68
    1-methoxy-2-propyl acetate 102.45
    2-(2-methoxypropoxy) propanol 100.26
    mesitylene 23.87
    ε-caprolactone 123.91
    p-cymene 24.03
    epichlorohydrin 177.72
    1,1,1-trichloroethane 74.46
    2-aminoethanol 17.61
    morpholine-4-carbaldehyde 142.71
    sulfolane 235.06
    2,2,4-trimethylpentane 9.0
    2-methyltetrahydrofuran 184.76
    n-hexyl acetate 88.03
    isooctane 6.93
    2-(2-butoxyethoxy)ethanol 142.17
    sec-butyl acetate 70.3
    tert-butyl acetate 96.6
    decalin 16.0
    glycerin 21.09
    diglyme 251.03
    acrylic acid 15.83
    isopropyl myristate 38.97
    n-butyric acid 67.13
    acetyl acetate 28.62
    di(2-ethylhexyl) phthalate 33.86
    ethyl propionate 61.3
    nitromethane 44.84
    1,2-diethoxyethane 158.48
    benzonitrile 38.74
    trioctyl phosphate 25.87
    1-bromopropane 74.11
    gamma-valerolactone 199.99
    n-decanol 26.45
    triethyl phosphate 43.17
    4-methyl-2-pentanol 41.47
    propionitrile 23.08
    vinylene carbonate 42.96
    1,1,2-trichlorotrifluoroethane 109.93
    DMS 44.56
    cumene 27.36
    2-octanol 26.76
    2-hexanone 107.08
    octyl acetate 43.67
    limonene 39.8
    1,2-dimethoxyethane 196.6
    ethyl orthosilicate 48.87
    tributyl phosphate 33.43
    diacetone alcohol 119.79
    N,N-dimethylaniline 62.52
    acrylonitrile 19.94
    aniline 33.6
    1,3-propanediol 38.08
    bromobenzene 39.02
    dibromomethane 87.03
    1,1,2,2-tetrachloroethane 165.69
    2-methyl-cyclohexyl acetate 82.51
    tetrabutyl urea 53.78
    diisobutyl methanol 36.41
    2-phenylethanol 49.59
    styrene 32.87
    dioctyl adipate 64.27
    dimethyl sulfate 40.38
    ethyl butyrate 73.57
    methyl lactate 31.07
    butyl lactate 62.49
    diethyl carbonate 40.05
    propanediol butyl ether 77.62
    triethyl orthoformate 67.37
    p-tert-butyltoluene 23.92
    methyl 4-tert-butylbenzoate 79.72
    morpholine 160.98
    tert-butylamine 55.24
    n-dodecanol 19.2
    dimethoxymethane 98.48
    ethylene carbonate 38.67
    cyrene 89.57
    2-ethoxyethyl acetate 91.46
    2-ethylhexyl acetate 74.73
    1,2,4-trichlorobenzene 52.73
    4-methylpyridine 75.48
    dibutyl ether 77.69
    2,6-dimethyl-4-heptanol 36.41
    DEF 104.91
    dimethyl isosorbide 191.58
    tetrachloroethylene 89.57
    eugenol 72.53
    triacetin 86.04
    span 80 89.67
    1,4-butanediol 16.69
    1,1-dichloroethane 74.23
    2-methyl-1-pentanol 73.77
    methyl formate 15.34
    2-methyl-1-butanol 59.7
    n-decane 6.86
    butyronitrile 41.32
    3,7-dimethyl-1-octanol 42.88
    1-chlorooctane 29.44
    1-chlorotetradecane 11.42
    n-nonane 6.39
    undecane 4.69
    tert-butylcyclohexane 14.53
    cyclooctane 6.3
    cyclopentanol 59.5
    tetrahydropyran 156.67
    tert-amyl methyl ether 85.15
    2,5,8-trioxanonane 172.94
    1-hexene 51.51
    2-isopropoxyethanol 94.32
    2,2,2-trifluoroethanol 7.29
    methyl butyrate 91.34

    Scent© AI

1 4

IFRA standard 51

Recommendation
No restriction
Maximum acceptable concentrations in the finished product (%)
Category 1
Products applied to the lips
 No restriction Category 7A
Rinse-off products applied to the hair with some hand contact
 No restriction
Category 2
Products applied to the axillae
 No restriction Category 7B
Leave-on products applied to the hair with some hand contact
 No restriction
Category 3
Products applied to the face/body using fingertips
 No restriction Category 8
Products with significant anogenital exposure
 No restriction
Category 4
Products related to fine fragrance
 No restriction Category 9
Products with body and hand exposure, primarily rinse off
 No restriction
Category 5A
Body lotion products applied to the body using the hands (palms), primarily leave on
 No restriction Category 10A
Household care products with mostly hand contact
 No restriction
Category 5B
Face moisturizer products applied to the face using the hands (palms), primarily leave on
 No restriction Category 10B
Household care products with mostly hand contact, including aerosol/spray products (with potential leave-on skin contact)
 No restriction
Category 5C
Hand cream products applied to the hands using the hands (palms), primarily leave on
 No restriction Category 11A
Products with intended skin contact but minimal transfer of fragrance to skin from inert substrate without UV exposure
 No restriction
Category 5D
Baby Creams, baby Oils and baby talc
 No restriction Category 11B
Products with intended skin contact but minimal transfer of fragrance to skin from inert substrate with potential UV exposure
 No restriction
Category 6
Products with oral and lip exposure
 No restriction Category 12
Products not intended for direct skin contact, minimal or insignificant transfer to skin
 No restriction